CN118578334A - Nail gun - Google Patents

Abstract

The invention relates to a nail gun, which comprises a nailing seat, a nailing seat support and a gun nozzle, wherein the gun nozzle is movably arranged relative to the nailing seat support; the nail seat support comprises a support body, a positioning pin and an elastic piece, wherein the gun nozzle comprises a gun nozzle body and a plurality of fixing grooves, and the positioning pin is abutted with the fixing grooves under the elastic action of the elastic piece. According to the invention, the rear end of the matching surface of the locating pin and the fixing groove is set to be in cambered surface transition, and when the gun nozzle is pulled forwards, the nailing depth can be adjusted or the gun nozzle can be replaced only by overcoming the elasticity of the elastic piece positioned above the locating pin; the front end of the matching surface of the locating pin and the fixing groove is set to be a plane, when the gun nozzle is pressed, the gun nozzle is blocked by the locating pin, the nail seat bracket is driven to move backwards together, and a mechanism that the nail gun presses down the gun head to prepare nailing is triggered, so that reliable operation is ensured; through setting up a plurality of fixed slots, realize hierarchical adjustment nailing degree of depth, promote user's experience and feel.

Description

Nail gun

[ Technical field ]

The invention relates to the technical field of building construction, in particular to a nailing gun.

[ Background Art ]

The nail gun is a product formed by combining a gun body part and a cartridge clip part, and comprises an electric nail gun, a pneumatic nail gun, a gas nail gun, a manual nail gun and the like, wherein the nail gun is mainly used in industries such as construction, interior decoration and the like, and the working principle of the nail gun is as follows: the gun nozzle is pressed down and the switch is pressed, the motor is started, the striker is driven by the lifting mechanism to drive the piston to compress air from the initial locking preparation position, after the striker is separated from the engagement with the lifting mechanism, the striker is released suddenly, and the row nails of the nailing box are pushed into the nailing seat by the nail pusher, so that the row nails are ejected from the gun nozzle. In order to meet the requirements of different nailing depths in the use process, various nailing guns are commonly provided with nailing depth adjusting mechanisms, and gun nozzles are usually required to be replaced in order to meet different use scenes. But the nailing degree of depth adjustment mechanism of current nail rifle is not only complicated structure to adjust inconveniently, the rifle mouth is changed and is often needed to be unlocked earlier and lock the nut afterwards with rifle mouth unscrew, and is comparatively complicated, and user experience feels poor.

In view of the above, it is desirable to provide an improved nail gun that overcomes the shortcomings of the prior art.

[ Summary of the invention ]

Aiming at the defects of the prior art, the invention aims to provide the nail gun which has a simple structure, is convenient for adjusting the nailing depth and can quickly replace the gun nozzle.

The technical scheme adopted for solving the problems in the prior art is as follows: a nail gun comprises a nail seat, a nail seat support connected with the nail seat and a gun nozzle arranged on the nail seat support, wherein the gun nozzle is movably arranged relative to the nail seat support; the nail seat support comprises a support body, a locating pin and an elastic piece, wherein the support body is supported on the nail seat, the locating pin is movably installed on the support body, the elastic piece is used for biasing the locating pin, a protrusion is arranged at the end part of the locating pin, the gun nozzle comprises a gun nozzle body connected to the nail seat support and a plurality of fixing grooves matched with the protrusion, the fixing grooves are arranged at intervals along the axial direction of the gun nozzle body, and the protrusion is abutted to the fixing grooves under the action of elastic force of the elastic piece.

The further improvement scheme is as follows: the fixing device comprises a fixing groove, a protrusion and a fixing groove, wherein the protrusion and the fixing groove are provided with a front end and a rear end along the nailing direction, the protruding front end is a vertical surface, an arc surface is arranged between the protruding front end and the rear end, the front end of the fixing groove is a vertical wall, and an arc groove is arranged between the front end and the rear end of the fixing groove.

The further improvement scheme is as follows: the height of the vertical surface is larger than that of the vertical wall, and the curvature of the arc-shaped surface is larger than or equal to that of the arc-shaped groove.

The further improvement scheme is as follows: the gun nozzle comprises a sliding groove and a transition groove, wherein the sliding groove is arranged along the axial direction of the gun nozzle body, the transition groove is arranged along the circumferential direction of the gun nozzle body, and the transition groove is connected between the fixed groove and the sliding groove.

The further improvement scheme is as follows: the cross-sectional shape of the transition groove is consistent with the cross-sectional shape of the fixed groove, and the depth of the fixed groove is larger than that of the transition groove.

The further improvement scheme is as follows: the sliding grooves are used for communicating the end parts of the transition grooves in the axial direction.

The further improvement scheme is as follows: the support body includes the connecting pipe that the axial is run through and sets up the first mounting hole of the top of connecting pipe, first mounting hole intercommunication the connecting pipe.

The further improvement scheme is as follows: the connecting pipe slide set up in the nailing seat, the rifle mouth of complaining cartridge in the connecting pipe, the locating pin with the elastic component accept in first mounting hole.

The further improvement scheme is as follows: the locating pin is including acceping in the shaft in the first mounting hole, protruding set up in the bottom of shaft, seted up the second mounting hole in the shaft, the elastic component is installed in the second mounting hole.

The further improvement scheme is as follows: the nail seat support comprises a cover plate abutting against the elastic piece and a fastening screw for fixing the cover plate, one end of the elastic piece abuts against the cover plate, the other end of the elastic piece abuts against the positioning pin, and the elastic piece is in a compression state.

The further improvement scheme is as follows: the support body is provided with the indent fixed slot, fastening screw penetrates in proper order the apron with the fixed slot, so that will the apron is installed to the support body.

Compared with the prior art, the invention has the following beneficial effects: the rear ends of the matching surfaces of the locating pin and the fixing groove are set to be in cambered surface transition, and when the gun nozzle is pulled forwards, the nailing depth can be adjusted or the gun nozzle can be replaced only by overcoming the elastic force of the elastic piece above the locating pin; the front ends of the matching surfaces of the locating pin and the fixing groove are set to be planes, when the gun nozzle is pressed, the gun nozzle is blocked by the locating pin, the nail seat support is driven to move backwards together, and a mechanism that the nail gun presses down the gun head to prepare nailing is triggered, so that reliable operation is ensured; through setting up a plurality of fixed slot realizes hierarchical adjustment nailing degree of depth, promotes user's experience and feels.

[ Description of the drawings ]

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings:

FIG. 1 is a schematic diagram of the overall structure of the nail gun of the present invention;

FIG. 2 is a schematic exploded view of the cartridge holder and gun nozzle of the gun of FIG. 1;

FIG. 3 is a schematic view of the gun nozzle of the nailer of FIG. 1;

FIG. 4 is a cross-sectional view of the cartridge holder and gun nozzle of the gun of FIG. 1 in a first position;

FIG. 5 is a cross-sectional view of the cartridge holder and gun nozzle of the gun of FIG. 1 in a second position;

FIG. 6 is a cross-sectional view of the locating pin of the nail gun of FIG. 1;

FIG. 7 is a cross-sectional view of the cartridge holder and gun nozzle of the gun of FIG. 1 in another angular configuration;

fig. 8 is an enlarged view of the middle collar N of the nail gun of fig. 4.

Meaning of reference numerals in the drawings:

nail gun 100 casing 10

Nailing seat 1 mounting tube 11

Nail seat support 2 support body 21

Connecting tube 211 fixing groove 212

First mounting hole 213 locating pin 22

Vertical surface 2211 of boss 221

Arcuate surface 2212 shaft 222

Second mounting hole 223 elastic member 23

First positioning column 241 of cover plate 24

Second positioning column 242 fastening screw 25

Gun nozzle 3 gun nozzle body 31

Vertical wall 3211 of fixing groove 321

Arc-shaped groove 3212 transition groove 322

Sliding groove 33 cylinder assembly 4

Nail box 5 switch assembly 6

Battery pack 7

Detailed description of the preferred embodiments

The terminology used in the present invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Words such as "upper", "lower", "front", "rear", etc., indicating an azimuth or a positional relationship are based on only the azimuth or the positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus/elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.

Referring to fig. 1, the present invention relates to a nail gun 100 for fixing various bamboo, wooden and other soft or hard sheet materials on brick-concrete walls and concrete products, and for connecting and fixing low-density metal or polymer products. The nail gun 100 comprises a casing 10, a motor (not shown) and a lifting mechanism (not shown) which are accommodated in the casing 10, a cylinder assembly 4 connected with the lifting mechanism, a firing pin (not shown) arranged in the cylinder assembly 4, a nailing seat 1 arranged at the front end of the casing 10, a nailing seat bracket 2 and a nailing box 5 connected with the nailing seat 1, a gun nozzle 3 arranged on the nailing seat bracket 2, a switch assembly 6 electrically connected with the motor and a battery pack 7 detachably arranged on the casing 10, wherein the battery pack supplies power for the nail gun 100.

The working principle of the nail gun 100 is as follows: the gun nozzle 3 is pressed down towards the surface of a workpiece to be hit, the gun nozzle drives the nail seat support 2 to move backwards relative to the nail seat 1, the pre-nailing state of the nail gun 100 is triggered, the switch assembly 6 is pressed again, the motor is started, the motor drives the lifting mechanism, the lifting mechanism drives the firing pin to drive the piston to compress high-pressure air in the cylinder assembly 4 from the initial locking preparation position, after the firing pin is disengaged from the lifting mechanism, the high-pressure air is released instantaneously to push the firing pin to hit the row nails in the nail box 5, and the row nails of the nail seat 1 are pushed into the nail pusher, so that the row nails are ejected from the gun nozzle 3.

Referring to fig. 1 to 3, the gun nozzle 3 is movably disposed relative to the nail holder support 2, the nail holder support 2 includes a support body 21 supported by the nail holder 1, a positioning pin 22 movably mounted on the support body 21, and an elastic member 23 biasing the positioning pin 22, the support body 21 is provided with an axially penetrating connection tube 211, the nail holder 1 is provided with a mounting tube 11, and the connection tube 211 axially slides in the mounting tube 11.

Specifically, the gun nozzle 3 and the nail seat support 2 together form a nailing depth adjusting mechanism of the nail gun 100, the nailing depth adjusting mechanism is movably mounted on the nail seat 1, and an injection end for injecting fasteners is arranged on the nailing depth adjusting mechanism of the nail gun 100. One end of the gun nozzle 3 is matched with one end of the nail seat support 2 in a plugging manner, one end of the nail seat support 2 away from the gun nozzle 3 is used for being installed on the nail seat 1, so that a nailing depth adjusting mechanism of the nail gun 100 is installed on a main body of the nail gun 100 through the nail seat support 2, and one end of the gun nozzle 3 away from the nail seat support 2 is an ejection end of the nail gun 100.

Referring to fig. 2, 3 and 6, the end of the positioning pin 22 is provided with a protrusion 221, the nozzle 3 includes a nozzle body 31 connected to the nail holder bracket 2 and a plurality of fixing grooves 321 matching with the protrusion 221, the plurality of fixing grooves 321 are arranged at intervals along the axial direction of the nozzle body 31, and the protrusion 221 abuts against the fixing grooves 321 under the elastic force of the elastic member 23.

In this embodiment, the elastic member 23 is a spring, and may be any elastic member with a biasing force in other examples, which is not limited herein.

Still further, the protrusion 221 and the fixing groove 321 have a front end and a rear end along the nailing direction, the front end of the protrusion 221 is a vertical surface 2211, an arc surface 2212 is disposed between the front end and the rear end of the protrusion 221, the front end of the fixing groove 321 is a vertical wall 3211, and an arc groove 3212 is disposed between the front end and the rear end of the fixing groove 321.

Specifically, the protrusion 221 is matched with the fixing groove 321, and since the elastic member 23 is disposed on the protrusion 221, a preset force is applied to the protrusion 221, and the gun nozzle 3 and the nail holder bracket 2 remain stable under the action of no external force; because the rear end of the mating surface of the protrusion 221 and the fixing groove 321 is set to be in arc transition, the friction force of arc contact is small, when the gun nozzle 3 is pulled forward, the nailing depth can be reduced or the gun nozzle 3 can be pulled out to facilitate subsequent replacement only by overcoming the elastic force of the elastic member 23 above the positioning pin 22.

The front ends of the matching surfaces of the protrusions 221 and the fixing grooves 321 are arranged to be flat, the vertical surface 2211 is in rigid contact with the vertical wall 3211, when the gun nozzle 3 is pressed, the gun nozzle 3 is blocked by the protrusions 221 to drive the nail seat support 2 to move backwards together, and a nailing mechanism can be prepared by pressing down the gun head of the nail gun 100, so that reliable operation is ensured.

Every two be provided with the grid between the fixed slot 321 and separate, through setting up a plurality of fixed slot 321, realize hierarchical adjustment nailing degree of depth to protruding 221 is slided and is formed the sense of staggering when the fixed slot 321, thereby promoted user's experience sense. Alternatively, referring to fig. 3, in this embodiment, four fixing slots 321 are provided, that is, four gears for adjusting the nailing depth are provided, and in other embodiments, the number of fixing slots 321 may be three, five or six, etc., which is not limited herein.

Referring to fig. 4, 5 and 8, the height of the vertical surface 2211 is greater than the height of the vertical wall 3211, that is, the bottom end of the protrusion 221 completely abuts against the bottom of the fixing groove 321, so as to ensure more reliable connection; the curvature of the arc surface 2212 is greater than or equal to the curvature of the arc groove 3212. The curvature of the arcuate surface 2212 and the curvature of the arcuate groove 3212 may be specifically set according to practical situations, for example, the curvature of the arcuate surface 2212 may be equal to the curvature of the arcuate groove 3212, that is, the arcuate surface 2212 is consistent with the shape and size of the arcuate groove 3212; it is also possible that the curvature of the arcuate surface 2212 is greater than the curvature of the arcuate groove 3212, i.e. the arcuate groove 3212 still leaves a gap after mating with the arcuate surface 2212.

Optionally, in this embodiment, the curvature of the arcuate surface 2212 is equal to the curvature of the arcuate groove 3212, so that the engagement between the protrusion 221 and the fixing groove 321 is facilitated, so that the structure is more compact and the connection is more reliable.

Referring to fig. 3, the nozzle 3 includes a sliding groove 33 disposed along an axial direction of the nozzle body 31 and a transition groove 322 disposed along a circumferential direction of the nozzle body 31, the transition groove 322 is connected between the fixing groove 321 and the sliding groove 33, and the sliding groove 33 communicates ends of the transition grooves 322 in the axial direction.

By rotating the gun nozzle 3 toward the transition groove 322 side, the elastic force of the elastic member 23 is overcome until the protrusion 221 is rotated from the fixed groove 321 to the transition groove 322 and finally falls into the sliding groove 33, and when the protrusion 221 is positioned in the sliding groove 33, the gun nozzle can be moved along the front and rear ends of the nailing direction, at which time the nailing depth can be adjusted or the gun nozzle 3 can be withdrawn for subsequent replacement.

When the gun nozzle 3 is mounted, the protrusion 221 is pushed in after being aligned with the sliding groove 33, the user can move the gun nozzle 3 to a position of a desired nailing depth, and then rotate the gun nozzle in a direction toward the transition groove 322 until the gun nozzle falls into the fixed groove 321, so that the gun nozzle can be mounted.

Further, the cross-sectional shape of the transition groove 322 is consistent with the cross-sectional shape of the fixing groove 321, so that the gun nozzle 3 can be processed more conveniently and rapidly; the depth of the fixing groove 321 is larger than that of the transition groove 322, which is beneficial to the connection between the gun nozzle 3 and the nail seat bracket 2 to be more reliable and stable.

Preferably, the junction between the transition groove 322 and the sliding groove 33 is an inclined plane, and when the protrusion 221 moves to any transition groove 322, the inclined plane plays a guiding role, so that the installation is more convenient.

Referring to fig. 4 to 8, a first mounting hole 213 is disposed above the connection pipe 211, and the first mounting hole 213 communicates with the connection pipe 211. The connecting pipe 211 is slidably provided to the nailing seat 1, the gun nozzle 3 is inserted into the connecting pipe 211, and the positioning pin 22 and the elastic member 23 are accommodated in the first mounting hole 213.

Specifically, the positioning pin 22 is movably disposed in the first mounting hole 213, and the elastic member 23 applies downward an elastic force to the protrusion 221 under the action of no external force, so that the protrusion 221 protrudes out of the lower end of the first mounting hole 213, and is convenient to cooperate with the nozzle 3; when the gun nozzle 3 is rotated or pulled, the elastic member 23 is compressed, and the bottom of the boss 221 is forced upward.

Referring to fig. 6, the positioning pin 22 includes a shaft 222 received in the first mounting hole 213, the protrusion 221 is disposed at a bottom end of the shaft 222, a second mounting hole 223 is formed in the shaft 222, and the elastic member 23 is mounted in the second mounting hole 223.

Further, the upper end of the elastic member 23 is connected to the bracket body 21, and the specific connection mode of the elastic member 23 on the bracket body 21 may be set according to practical situations, for example, the elastic member 23 is detachably connected to the bracket body 21 through a cover plate; the elastic member 23 may be directly fixed to the holder body 21.

Optionally, in this embodiment, the elastic member 23 is detachably connected to the bracket body 21 through a cover plate, so that the elastic member 23 is convenient to be detached and replaced when it fails. The elastic member 23 is detachably connected to the bracket body 21 through a cover plate, as will be described below.

The nail seat bracket 2 comprises a cover plate 24 abutting against the elastic piece 23 and a fastening screw 25 for fixing the cover plate 24, one end of the elastic piece 23 abuts against the cover plate 24, the other end of the elastic piece 23 abuts against the positioning pin 22, and the elastic piece 23 is in a compressed state.

Referring to fig. 8, the bracket body 21 is provided with a concave fixing groove 212, and the fastening screw 25 sequentially penetrates the cover plate 24 and the fixing groove 212 to mount the cover plate 24 to the bracket body 21. The cover plate 24 includes a first positioning column 241 installed in the fixing groove 212 and a second positioning column 242 installed in the first mounting hole 213, the fastening screw 25 extends through the first positioning column 241, and one end of the elastic member 23, which is far away from the positioning pin 22, is sleeved on the second positioning column 242, so that the elastic member 23 is reliably positioned in the first mounting hole 213 and is not easy to move and displace.

According to the invention, the rear end of the matching surface of the locating pin 22 and the fixed groove 321 is set to be in cambered surface transition, and when the gun nozzle 3 is pulled forwards, the nailing depth can be adjusted or the gun nozzle 3 can be replaced only by overcoming the elastic force of the elastic piece 23 above the locating pin 22; by setting the front end of the mating surface of the positioning pin 22 and the fixing groove 321 as a plane, when the gun nozzle 3 is pressed, the gun nozzle 3 is blocked by the positioning pin 22, drives the nail seat bracket 2 to move backwards together, triggers a mechanism that the nail gun 100 can press down the gun head to prepare nailing, and ensures reliable operation; through setting up a plurality of fixed slot 321 realizes hierarchical adjustment nailing degree of depth, promotes user's experience and feels.

The present invention is not limited to the above-described embodiments. Those skilled in the art will readily appreciate that many other alternatives to the present invention are possible without departing from the spirit and scope of the present invention. The protection scope of the present invention is subject to the claims.

Claims (11)

1. A nail gun comprises a nail seat, a nail seat support connected with the nail seat and a gun nozzle arranged on the nail seat support, wherein the gun nozzle is movably arranged relative to the nail seat support; the method is characterized in that: the nail seat support comprises a support body, a locating pin and an elastic piece, wherein the support body is supported on the nail seat, the locating pin is movably installed on the support body, the elastic piece is used for biasing the locating pin, a protrusion is arranged at the end part of the locating pin, the gun nozzle comprises a gun nozzle body connected to the nail seat support and a plurality of fixing grooves matched with the protrusion, the fixing grooves are arranged at intervals along the axial direction of the gun nozzle body, and the protrusion is abutted to the fixing grooves under the action of elastic force of the elastic piece.

2. The nailer of claim 1 wherein: the fixing device comprises a fixing groove, a protrusion and a fixing groove, wherein the protrusion and the fixing groove are provided with a front end and a rear end along the nailing direction, the protruding front end is a vertical surface, an arc surface is arranged between the protruding front end and the rear end, the front end of the fixing groove is a vertical wall, and an arc groove is arranged between the front end and the rear end of the fixing groove.

3. The nailer of claim 2 wherein: the height of the vertical surface is larger than that of the vertical wall, and the curvature of the arc-shaped surface is larger than or equal to that of the arc-shaped groove.

4. The nailer of claim 2 wherein: the gun nozzle comprises a sliding groove and a transition groove, wherein the sliding groove is arranged along the axial direction of the gun nozzle body, the transition groove is arranged along the circumferential direction of the gun nozzle body, and the transition groove is connected between the fixed groove and the sliding groove.

5. The nailer of claim 4 wherein: the cross-sectional shape of the transition groove is consistent with the cross-sectional shape of the fixed groove, and the depth of the fixed groove is larger than that of the transition groove.

6. The nailer of claim 4 wherein: the sliding grooves are used for communicating the end parts of the transition grooves in the axial direction.

7. The nailer of claim 1 wherein: the support body includes the connecting pipe that the axial is run through and sets up the first mounting hole of the top of connecting pipe, first mounting hole intercommunication the connecting pipe.

8. The nailer of claim 7 wherein: the connecting pipe slide set up in the nailing seat, the rifle mouth of complaining cartridge in the connecting pipe, the locating pin with the elastic component accept in first mounting hole.

9. The nailer of claim 7 wherein: the locating pin is including acceping in the shaft in the first mounting hole, protruding set up in the bottom of shaft, seted up the second mounting hole in the shaft, the elastic component is installed in the second mounting hole.

10. The nailer of claim 7 wherein: the nail seat support comprises a cover plate abutting against the elastic piece and a fastening screw for fixing the cover plate, one end of the elastic piece abuts against the cover plate, the other end of the elastic piece abuts against the positioning pin, and the elastic piece is in a compression state.

11. The nailer of claim 10 wherein: the support body is provided with the indent fixed slot, fastening screw penetrates in proper order the apron with the fixed slot, so that will the apron is installed to the support body.